Incandescent gas-burner.



PATENTBD s212129. 1903.

J. JOATTON. lIBHAIQDESCEBIT GAS BURNER.

'APP-IIOATION FILED MAY 26, 1903..

N0 MODEL.

FIGA

Ilm.,

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UNITED STATES Patented September 2 9, 1903.

PATENT OEEICE.

vJOSEPH JOATToN, OF LYONS, FRANCEASSIGNOR TO A. MICHAUD &: OIE., OF

PARIS, FRANCE.

INCANDESCENT GAS-BURNER.

SPECIFICATION forming' part of Letters Patent No. 739,879, dated September 29, 1903. Application iiled May 26, 1903. Serial No. 158.854. v(No model.)

To all whom it may concern:

Be it known that/I, JOSEPH JoATToN, engineer, a citizen of France, residing at 7 6 Boulevard du Nord, Lyons, France, have invented a new and` useful Improved Incandescent Gas-Burner, of which the following is a specitication. v

The invention consists, essentially, of a gas and air mixing tube to be employed in incandescent gas-lighting.

The invention is illustrated in and described in connection with the accompanying drawings, in whichf- Figure 1 is a vertical axial section; Fig. 2, an elevation; and Fig. 3V a cross section drawn on the line 1 2 of'Fig. 1, showing the improvements.

The tube consists of four pieces a b c d. The piece a is the injector, properly so called, which serves to inject the gas through the orifice o-into the mixing-chamber e. This piece is internally screw-threaded at f to enable it to be applied to the burner-supports ordinarily employed iny lighting by coal-gas, by acetylene, -and other gases. This piece is also externally screw-threaded at g to receive' the second piece b. This piece h is a metallic ring formed with holes h in its lower 'part at a lower level than the injection-orifice o.

The holes h are calculated to give free entrance to the quantity of atmospheric air necessary to form with the gas injected through the orifice o a mixture the combustion ot which will furnish a blue heating and not illuminating flame at about the normal pressure corresponding with a column of water of sixty-tive millimeters. The upper part of the piece b is screw-threaded at 'i .with a tine thread to a sufficient height, and the cylindrical tube formed by this screwed part has formed therein throughout its entire height groovesjj of convenient number, the lowest part -of which is exactly on a level with the injection-orifice o. The third piece c isv a sort of hood, the interior of which is screwthreaded to screw onto the upper part of the piece b. If this piece c is screwed home onto the piece b, as in Fig. 1, the holes h in the lower part of the latter piece alone furnish the atmospheric air induced by the column of gas injected through o. yIt' the piece c is more or less unscrewed, as shown at Fig. 2, and as is advisable to do when the gasworks supply gas at a low pressure, the groovesj will be uncovered and will give free passage to a larger or smaller quantity of atmospheric air, which coming into contact with the columnof gas injected will be carried by it into the mixing-chamber c, formed in the piece c. f

When the pressure of gas is normal-that is, about sixty-five millimeters of waterthe lower orices'h are sutticient to give a suitable/mixture. At lower pressures, the injection not having an induction power sufficient to draw in a sufficient quantity of air through the holes h, the orifices will be uncovered, so as draw in a further quantity of air at the level of the injection-orifice 0. This latter air striking the jet of gas at right angles 7o mixes intimately with it, and it will be possible by screwing or uuscrewing more or less the piece c to obtain a mixture of gas and atmospheric air which, as judged by the flame incombustion, will be limited to a blue heating and non-illuminating flame without any mixture of'white or red illuminating-flame.

The chamber e is terminated at its upper part by a cone in the form of a reversed funnel, the axis of which is in the same axis as 8o that of the gas-injection ori lice o. The fourth piece d is a simple cylindrical tube serving as ajutage for conducting the mixture to the burner. This piece CZ is internally screwthreaded at its lower part, as shown at Fig. 1, and is screwed onto the piece c. This arrangement has the advantage of permitting the employment of ajutages of dierent diameters for various dimensions of tubes and to facilitate the realization of the blue flame 9o by enabling the interior diameters of the said piece d to be varied. On `this chimney is adapted the gallery known in incandescent lighting, but not shown in the drawings. This gallery carries the burner of metallic gage, 9 5 the mantle of oxids of rare earths, and, if desired, one of the known arrangements for automatic lighting.

What I claim as my invention, and desire to secure by Letters Patent,`is 4 1. An incandescent gas-burner comprising a tube, for the injection and mixture of gas IOO and air, furnished with two rows of air-inlet openings, the first situated below the injection-orifice and regulated by construction, the second situated at the level of the injectionorifice, and admitting air in a direction perpendicular to the direction of the gas and means for regulating said second row of openings, substantially as herein set forth.

2. In an incandescent gas-burner, the cornbination of an injector having a central orilice at its upper part and being internally screw-threaded to enable it to be applied to ordinary gas-burner supports, a metallic ring having holes around its lower part at a lower level than the injection-orifice, and having vertical groovesat the upper part of said ring, an internal screw-thread at the lower part of said ring to enable the latter to be screwed onto the injector, an external screwthread around the upper part of said ring, a hood in form of a reversed funnel, an inter'- nal screw-thread in the lower part of said hood to enable the latter to be screwed onto the upper screw of the ring, an external screw-thread at the upper part of the hood 25 and an ajutage with an internal screw-thread at its lower part to screw onto the hood, said ajutage being adapted to receive the ordinary gallery and mantle used in incandescent gaslighting, substantially as herein set forth.

3. In an incandescent gas-burner the combination of an injector, a ring screwing onto said injector, having holes in its lower part, and variable grooves in its upper part, and a hood screwing onto said ring and capable of 35 being more or less unscrewed to admit more or less air to the vertical grooves in the ring, substantially as herein set forth.

In testimony whereof I have signed my naine to this specification in the presence of 4o two subscribing witnesses.

JOSEPH JOATTON.

Witnesses:

GASTON JEAUNIAUX, MARIN NACHON. 

